仁爱版八年级上册Unit 2 Topic 2 I must ask him to give up smoking. 知识点

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仁爱版八年级上册Unit 2 Topic 2 I must ask him to give up smoking. 知识点

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1097280011912600Unit2 Topic 2
Section A
cause引起,引发,导致What caused it?是什么引起它的?在口语中可说成What’s happening?=What’s wrong?=What’s the matter/trouble?
2.stay up late熬夜
3.be bad for sb./sth.对某人/某物不好be good for sb./sth.对某人/某物有好处
Sports are good for our health.运动对健康有好处。
4.动名词短语作主语,谓语动词用单数
Watching too much TV is not good for our health.看太多电视对我们的身体健康是没有好处的。is not good for=is bad for
Doing morning exercises is good for our body.做早操对我们的身体是有好处的。
5.right after紧跟着playing sports right after meals饭后立即做运动
play sports=have/do sports=do exercise做运动
Section B
1.cause cancer导致癌症
2.must必须,一定,用于肯定句/疑问句You must follow the rules.你必须遵循规则。Must we stay at home?我们一定要待在家里吗?
否定形式为must not=mustn’t其意思是禁止, 不许, 不准, 一定不要, 一定不许。
否定句:You mustn’t throw litter about.=Don’t throw litter about.不要乱扔垃圾。
由must(必须、一定要)开头的问句, 不用mustn’t 来回答,而应用needn’t 或don’t have to来回答。
Eg:Must he clean the room before class? 他一定要在课前打扫教室吗?
肯定回答: Yes, he must. 是的, 一定要。
否定回答: No, he needn’t./ No, he doesn’t have to.不,不必。
ask sb. to do sth. 请求某人做某事ask sb. not to do sth.请求某人不要做某事
Eg:My mother asks me not to go out at night.我妈妈叫我晚上不要外出。
4.give up放弃
give up sth.(具体某物/具体名称)I want to give up my plan.
give sth.(具体某物/某事名称/代词)up:I want to give my plan/it up.
give up doing sth.放弃做某事eg:You should give up smoking.
be necessary for对...来说有必要
Sunshine is necessary for our lives.阳光对所有的生物来讲是有必要的。
6.enough:(1)形容词,足够的,充分的,既可以放在名词之前,也可以放在名词之后。enough+名词=名词+enough
Eg:Do you have enough money/money enough to buy it?你有足够的钱买它吗?
There are enough people / people enough to do the work.有足够的人做这个工作了。
(2)副词,足够地 ,充分地,放在形容词或副词之后。形容词/副词+enough
Eg:It’s good enough, I think.我认为它足够好了。
If you get up early enough, you will catch the bus.如果你起床得足够早,你将能够赶上这班公交车。
7.during the day=in the daytime一整天
Section C
might原形为may可能,也许He said he might come tomorrow.他说他明天可能会来。(1)表示可能性,可能
He might get there in time,but I can’t be sure.他可能会准时到达那,但是我不确信。
表示有礼貌地提出建议
You might try another pair of shoes.你可以试下另外一双鞋子。
例题:
(1)---Mom,may I have a pear?---Of course.But you______wash your hands first.
A.must B.may C.can
(2)The meeting can’t start without you.You_____be here on time.
A.should B.may C.will D.must
2.force sb. to do sth.=force sb. into doing sth.强迫某人做某事Eg:This boss often forces the workers to work for 12 hours.这老板常常强迫工人工作12小时。
force和make都可以表示迫使,但force含有较强的暴力威胁之意,而make则表示一般意义上的“使得,让”。
be forced to do sth. 表示“被迫做某事”
3.as soon as一... 就...(引导时间状语从句)
I will call you as soon as I get to Beijing.我一到北京就打电话给你。
4.make sb. do sth.使某人做某事
My mother always makes me study English.妈妈总是让我学习英语。
5.be surprised to do sth. 对做某事很惊讶She was surprised to find that her new bike was lost.她很惊讶地发现她的新自行车不见了。
surprise(名词)惊奇,诧异give sb. a surprise给某人一个惊喜 in surprise惊奇地
to one’s surprise让某人惊讶的是
surprise(动词)使...惊奇,使...诧异
His coming surprised me a lot.他的到来让我很惊奇。
surprising(形容词)令人惊奇地,令人诧异的
His coming is surprising.他的到来令人惊奇。
surprised(形容词)惊奇地,诧异的I’m surprised.我很惊奇的。
be surprised at/by... 对... 感到吃惊
6.by chance意外地,偶然地

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